Method and apparatus for multiplexing high-speed packet data transmission with voice/data transmission

• US 6,775,254 B1
• Filed: 11/09/2000
• Issued: 08/10/2004
• Est. Priority Date: 11/09/2000
• Status: Expired due to Term

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Lundby, Stein A., Willenegger, Serge
• Primary Examiner(s): Chin, Wellington
• Assistant Examiner(s): Pham, Brenda
• Application Number:
  US09/711,121
• Time in Patent Office: 1,370 Days
• Field of Search: 370/310, 370/319-321, 370/329, 370/352-356, 370/335, 370/337, 370/342, 370/344, 370/347
• US Class Current: 370/329
• CPC Class Codes: H04B 7/264 for data rate control
• CPC Class Codes: H04W 52/34 TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading

Abstract

Techniques for transmitting voice/data and packet data services such that packet data transmissions have less impact on voice/data transmissions. In one aspect, voice/data and packet data can be multiplexed within a transmission interval such that the available resources are efficiently utilized. In another aspect, the amount of variation in the total transmit power from a base station is controlled to reduce degradation to transmissions from this and other base stations. In a specific method for concurrently transmitting a number of types of data, a first data type (e.g., voice, overhead, and some data) and a second data type are respectively processed in accordance with first and second signal processing schemes to generate first and second payloads, respectively. First and second partitions are then defined in a transmission interval. The first and second payloads are time multiplexed into the first and second partitions, respectively, and the multiplexed payloads are transmitted.

Claims

1. A method for concurrently transmitting a plurality of types of data in a wireless communication system, the method comprising:

receiving and processing a first type of data in accordance with a first signal processing scheme to generate a first payload;

receiving and processing a second type of data in accordance with a second signal processing scheme to generate a second payload;

defining a first partition in a transmission interval to be used for transmitting the first type of data and a second partition in the transmission interval to be used for transmitting the second type of data;

selecting a particular capacity for the transmission interval exceeding that required by the first payload via a channelization code with a shorter length, wherein the first and second partitions are defined based in part on the selected capacity;

multiplexing the first and second payloads into the first and second partitions, respectively; and

transmitting the multiplexed first and second payloads.

2. A method for concurrently transmitting a plurality of types of data in a wireless communication system, the method comprising:

receiving and processing a first type of data in accordance with a first signal processing scheme to generate a first payload;

receiving and processing a second type of data in accordance with a second signal processing scheme to generate a second payload;

defining a first partition in a transmission interval to be used for transmitting the first type of data and a second partition in the transmission interval to be used for transmitting the second type of data;

multiplexing the first and second payloads into the first and second partitions, respectively; and

transmitting the multiplexed first and second payloads, wherein the second partitions for neighboring transmitting sources are defined to be approximately aligned in time.

3. A method for concurrently transmitting a plurality of types of data in a wireless communication system, the method comprising:

receiving and processing a first type of data in accordance with a first signal processing scheme to generate a first payload;

receiving and processing a second type of data in accordance with a second signal processing scheme to generate a second payload;

defining a first partition in a transmission interval to be used for transmitting the first type of data and a second partition in the transmission interval to be used for transmitting the second type of data;

multiplexing the first and second payloads into the first and second partitions, respectively; and

transmitting the multiplexed first and second payloads, wherein the second partitions for neighboring transmitting sources are defined such that the second partitions overlap time-wise.

4. A method for concurrently transmitting a plurality of types of data in a wireless communication system, the method comprising:

receiving and processing a first type of data in accordance with a first signal processing scheme to generate a first payload;

receiving and processing a second type of data in accordance with a second signal processing scheme to generate a second payload;

defining a first partition in a transmission interval to be used for transmitting the first type of data and a second partition in the transmission interval to be used for transmitting the second type of data;

multiplexing the first and second payloads into the first and second partitions, respectively; and

transmitting the multiplexed first and second payloads, wherein transmit power for the second partition is maintained to be approximately equal to or less than transmit power for the first partition.

5. A transmitter unit in a communication system operative to transmit a plurality of types of data, the transmitter unit comprising:

a first data processor operative to receive and process a first type of data in accordance with a first signal processing scheme to generate a first payload;

a second data processor operative to receive and process a second type of data in accordance with a second signal processing scheme to generate a second payload;

a multiplexer coupled to the first and second data processors and operative to multiplex the first and second payloads into first and second partitions, respectively, wherein the first partition is defined within a transmission interval and used to transmit the first type of data, wherein the second partition is further defined within the transmission interval and used to transmit the second type of data, wherein the capacity of the transmission interval is determined based in part on a length of a channelization code used for the first type of data; and

a transmitter coupled to the multiplexer and operative to process and transmit the multiplexed first and second payloads.

6. The transmitter unit of claim 5, wherein the first type of data comprises voice data and the second type of data comprises high-speed packet data.